Results 81 to 90 of about 80,987 (294)

A short review on the morphology of Trypanosoma cruzi: from 1909 to 1999

open access: yesMemorias do Instituto Oswaldo Cruz, 1999
The morphology of Trypanosoma cruzi is reviewed since the initial description of Giemsa-stained preparations by Carlos Chagas until the most recent micrographs obtained with freeze-fracture techniques.
Wanderley de Souza
doaj   +1 more source

Cold-water octocoral Viminella flagellum respiration rates during an acute Cu exposure

open access: yes, 2022
Herein we report the respiration rates (O2 consumption) of the cold-water coral Viminella flagellum exposed to acute Cu concentrations. In a lab experiment, sixty nubbins of V.
Rakka, Maria   +3 more
core   +1 more source

Double Helix Structure for Stable Flexural Actuation in Soft Robotics

open access: yesAdvanced Intelligent Systems, EarlyView.
This work introduces a double‐helical architecture for soft robotic actuators that enhances twisting resistance, increases output force, and minimizes undesired deformation. Actuators driven by shape‐memory alloy wires exhibit a roughly fivefold higher torsional/flexural stiffness ratio and 50% greater force output.
Louis Plottel   +4 more
wiley   +1 more source

New flagellum rotation around the old flagellum does not occur.

open access: yes
(A-C) SBF-SEM data slice (scale bar = 1 μm) and two 3D reconstructed models (scale bar = 2 μm) of a Stage 1, 2 and 3 cell illustrating that there is no rotation of the new flagellum (orange) around the old flagellum (opaque pink) during new flagellum ...
Molly Hair (18071631)   +7 more
core   +1 more source

Flagellum assembly in protozoan parasites [PDF]

open access: yes
The cell cycle is fundamental for Leishmania survivability and to maintain pathogenicity, ensuring that each generation retains the same cytoskeletal morphology and organelles.
Hair, Molly
core   +1 more source

Functional Specialization of Respiratory and Olfactory Mucus Revealed by Proteomic Profiling

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Mucus overlies the nasal mucosa in the respiratory and olfactory regions, which perform distinct physiological functions. However, proteomic differences between respiratory mucosa (RM) and olfactory cleft (OC) mucus remain unclear.
Anna Kristina Hernandez   +7 more
wiley   +1 more source

The nut-and-bolt motion of a bacteriophage sliding along a bacterial flagellum: a complete hydrodynamics model

open access: yesScientific Reports, 2023
The ‘nut-and-bolt’ mechanism of a bacteriophage-bacteria flagellum translocation motion is modelled by numerically integrating the 3D Stokes equations using a Finite-Element Method (FEM).
Sergey A. Karabasov   +2 more
doaj   +1 more source

Male reproductive system in stenopodidean shrimps: Unveiling basal reproductive traits in shrimp‐like Pleocyemata (Stenopodidae and Spongicolidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract Stenopodidea represents one of the basal lineages within Pleocyemata, yet the male reproductive system (MRS) of this group remains poorly understood, with limited information available regarding its morphology and function. This study provides the first detailed description of the MRS in four stenopodidean shrimp species from two families ...
Caio Santos Nogueira   +2 more
wiley   +1 more source

A Flagellum-specific Calcium Sensor

open access: yesJournal of Biological Chemistry, 2005
The flagellar calcium-binding protein (FCaBP) of the flagellated protozoan Trypanosoma cruzi associates with the flagellar membrane via its N-terminal myristate and palmitate moieties in a calcium-modulated, conformation-dependent manner. This mechanism of localization is similar to that described for neuronal calcium sensors, which undergo calcium ...
Kathryn T, Buchanan   +7 more
openaire   +2 more sources

Bioeconomy, sustainability, and digital technologies in Haematococcus lacustris biomass and astaxanthin production: advances and outlook

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Astaxanthin is a carotenoid with strong antioxidant properties, used in research on cancer treatment, ocular injuries, and neurological disorders. When produced by the microalgae Haematococcus lacustris, its antioxidant potential is even higher than that of the synthetic molecule, making it particularly attractive for pharmaceutical and ...
Renata Kühl Rocha   +5 more
wiley   +1 more source

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